Is there some plugin/way to crop images when they are uploaded in a Modx TV?
I got a slider with a ratio of 1:4. Now when the user uploads a image in another ratio, the image will stretch out.
I want something like Facebook does when you upload a cover image which is to high.
(PS: I want to use it later in Migx)
Like 'okyanet' mentioned you can use phpThumbOf to set the dimensions/ratio when MODx delivers the image.
Another way would be to use the extra 'Image+'. You still need phpThumbOf for this, but the Editor can define the clipping manually in the Manager. And you can define the ratio of the clipping in the TV-Setting for the image.
Use phpThumbOf. The 'zoom-crop' parameter will allow you to preserve the source aspect ratio and then crop it to the dimensions you require.
The image is processed when the page is parsed by MODX, rather than at the time of upload.
There are plenty of articles about how to use this extra, including this one:
http://www.belafontecode.com/image-manipulation-with-phpthumbof-in-modx-revolution/
Related
I'm using multer node and express to upload a image to my app. But some images shows rotate 90 degrees when it's on the client.
why is this happening?, how can I fix it?
By the way I'm using vue on the client and for the upload process, of course I use formdata
UPDATE
After research and comments from the guys above, its a EXIF problem. Any code ideas to solve this?
The behaviour you are experiencing is probably caused by the Exif Orientation metadata.
There is another question here on Stackoverflow about this problem: JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
The selected answer points to a project called Javascript-Load-Image as a possible solution, that basically means you will have to take the orientation in consideration when rendering the images to get a consistent behaviour.
Another possible alternative would be to edit/remove the orientation metadata in your backend.
Check the following resource for more information:
JPEG Image Orientation and Exif
This is most likely caused by Exif metadata (just like #Romulo suggested).
Browsers ignore Exif metadata when displaying images and that's why you're getting this behaviour.
To check that this is related to Exif take 4 pictures with different phone orientation (landscape left, landscape right, portrait, upside down). One of them will be shown properly, while the other 3 will be rotated. (Also note that if you're using the front camera, the image will also get mirrored).
Not all camera phones do this, but iOS does it consistently. The reason for this is performance. When rotation the phone the sensor also rotates and the picture taken doesn't take the rotation into consideration.
To properly show the photo, the image needs to be rotated, but if you just change the Exif metadata then you don't need to do it. Of course, any client that shows the image needs to be aware of this information (and iOS Photos and such are aware).
This has nothing to do with multer, but with the images are stored.
The bottom line is that you need to rotate the image to compensate for this.
Take a look over this npm package to adjust your image on the server side.
I have been trying to implement a feed App like Instagram or Facebook. ImageViews have match_parent width (screen width) and wrap_content height.
The code I have used...
Glide.with(context)
.load(imageURL)
.thumbnail(0.1f)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imageView)
;
That results into loading thumbnail first. The thumbnail is very small in size. I was expected that the thumbnail will display a faded image with the original image height.
Without thumbnail, the ImageViews do not populate any image (when loading) and then suddenly the original images comes into picture. I cannot use any place holder image as the height of the place holder image may not match the actual image to be loaded, makes it a bad user experience.
I have also tried...
Glide.with(context)
.load(imageURL)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.placeholder(null)
.into(imageView)
;
But it is not working! I was wondering how the Instagram App does those fade in loading with images (with original image height)?
I have looked into various websites including the Glide Github issues and stack overflow, but unable to find any solution! I have already wasted about 6 hours of my day. What is the way out of this problem?
Use override attribute:
Glide.with(context)
.load(imageURL)
.override(18,18)
.thumbnail(0.1f)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imageView);
Also as Instagram is owned by Facebook it might be the case that they use Fresco library (not sure though).
I am inspecting a portal's page for loading of images ,its loading very slow.
We pick images from a filesystem , images name from database and read them, create a list and show results using a4j:mediaOutput tag. but the images are being loaded very slowly.
http://www.easyrenting.com/list-detail/3bhk-ardee-city-sector-52/6263
The first problem I see is that all your pictures are high-res (1800px x 2400px).
You really should create thumbnails server side to meet your view requirement and load images according of the size you want to show on the client size.
Have you only verified that your web page weight about 6.5MB including all images? (Check with Firebug).
I would recommand you a custom servlet like this one FileServlet supporting resume and caching with GZIP, and create a URL pattern according to load full res or thumbnail depending of the requirement.
There is no problem using the a4j:mediaOutput tag.
The images are getting loaded slowly because the size is too large, you need to find out a way to optimize the image size. Probably you can re-size the images before saving it to your file system.
Unless you are giving the zoom functionality, you do not need these big images.
That should help!
I have developed an LWUIT app. I have two types of images dispayed in the app. One coming from server side that need to displayed (like a photo posted and saved to server side) and one packaged in my jar and displayed mainly as icons (like a music icon, loading animation gif etc). I need to display all images according to the sreen size and resolution. The first kind is displayed by taking the screen display height and width and then use scale method and show a scaled version of the image. But however I have no idea how to show the second kind. i.e. icons. Example, my loading image looks good in most of the phones but for some phones like samsung, it looks blurred and over-sized. How to do this. My basic idea is to keep 3 types of images of icons like icon_width_lowXheight_low.png, icon_width_mediumXheight_medium.png and image_width_highXheight_high.png and show it based on the screen size. Please let me know the bets way to achieve this?
Thanks,
Parvathy
You should use MultiImages which were added in LWUIT 1.5. I don't have a link for this in LWUIT but our work in Codename One is pretty close to this so check out the How Do I? on multi images (and I suggest migration to Codename One regardless).
I think that you will need to use this
Image i = Image.createImage("your image path here");
i = i.scaled(widthValue, heightValue);
And put this values in relation to the Display.getInstance().getDisplayHeight() and Display.getInstance().getDisplayWidth()
Right?
I am working on implementing a gallery, I tried GridFieldManager for this, but the images of the thumbnail are not of same size. I sneaked through the gridfieldclass but there are no methods for making the cell size of each image constant.
Is it worth to use flowfieldmnager? When I tried overriding sublayout method for the above two managers it is not giving the desired reults.
Is it possible to sublayout flowfieldmanager?
Device : Blackberry 9780, OS 6.0
The below image is the desired result I am trying to get
I advice you to use a simple FlowFieldManager. But instead of BitmapField inside it, extend a Field to do the following:
setExtent to 1/4 of the Display width in the sublayout method
draw your own focus in the border of the image
draw your own borders and draw the image in the center of the field's extent